Live coverage: SpaceX’s next Falcon 9 moved to launch pad for hotfire test

SpaceX was already tasked with returning NASA astronauts Butch Wilmore and Suni Williams as part of the Crew-9 mission. That departure was delayed by NASA due to unresolved issues with the fifth Crew Dragon capsule that will launch the Crew-10 flight.

SpaceX fired up nine Merlin main engines at the bottom of a previously-flown Falcon 9 booster Saturday at NASA’s Kennedy Space Center, running the rocket through a practice countdown before a scheduled liftoff Jan. 18 with a Crew Dragon capsule to test the human-rated ship’s high-altitude abort capability.

A $1.8 billion U.S. Air Force communications satellite rode a United Launch Alliance Atlas 5 rocket into orbit Wednesday from Cape Canaveral, joining three similar craft perched more than 22,000 miles above Earth to ensure government leaders can remain in contact with military commanders in the worst-case scenario of nuclear war.